Meiosis, which occurs during sexual reproduction, allows for a great variety of possible gene combinations. Which of the following can increase genetic variation during meiosis?

Question

the transposition of a gene from one place in an organism's genome to another
the deletion of a gene caused by an error in chromosomal crossover
the exchange of genes during chromosomal crossover
the duplication of a gene caused by an error in chromosomal crossover

Answer 1

- the transposition of a gene from one place in an organism's genome to another
- the exchange of genes during chromosomal crossover
- the duplication of a gene caused by an error in chromosomal crossover

These processes can lead to genetic variation by creating new gene combinations or duplicating existing genes. The deletion of a gene caused by an error in chromosomal crossover would actually decrease genetic variation as it would result in a loss of genetic material.